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Bounded unit root processes with non-stationary volatility
No full textThis article concerns the unit root testing under nonstandard conditions for a time series process, such as having an innovation process with non-stationary variance and being limited inside an interval. These conditions are investigated separately in the unit root literature and shown to cause problems, such as size distortions. In this article, we consider the presence of both conditions in the unit root tests simultaneously. The simulation results indicate that the previous methods fail to provide satisfactory inference performance under the simultaneous presence of these conditions. To alleviate this issue, we propose a robust unit root testing mechanism and derive this procedure's asymptotic properties
The mediating role of cognitive flexibility in the relationship between rejection sensitivity and post traumatic stress disorder
Get PDFÖZET: Bu c?alışmada reddedilme duyarlılığı ile travma sonrası stres bozukluğu arasındaki ilişkide bilişsel esnekliğin aracılık rolu?nu?n incelenmesi amac?lanmaktadır. Çalışma ilişkisel tarama modelinde yu?ru?tu?lmu?ştu?r. Çalışmanın o?rneklemini, İstanbul İli Sarıyer İlc?esinde bulunan liselerde eğitim ve o?ğretimlerine devam eden 12.Sınıf o?ğrencilerinden uygun o?rnekleme yöntemi ile seçilen 385 katılımcı oluşturmaktadır. Çalışma verileri internet u?zerinde hazırlanan bir anket formu yardımıyla toplanmıştır. Anket formunda, demografik sorular, Reddedilme Duyarlılığı Ölc?eği, Travma Sonrası Stres Bozukluğu Kontrol Listesi ve Bilişsel Kontrol ve Esneklik Ölc?eği yer almaktadır. Verilerin analizi SPSS v26 yazılımıyla gerc?ekleştirilmiştir. Çalışma kapsamında gec?erlilik analizi, gu?venilirlik analizi, normal dağılım analizi, tanımlayıcı istatistiksel analiz, korelasyon analizi, regresyon analizleri, t-testi ve ANOVA analizleri gerc?ekleştirilmiştir. Analizler sonucunda reddedilme duyarlılığının TSSB u?zerinde pozitif, bilişsel esneklik u?zerinde ise negatif etkilerinin olduğu tespit edilmiştir. Bunun yanında bilişsel esnekliğin TSSB üzerinde negatif etkisinin olduğu belirlenmiştir. Ayrıca reddedilme duyarlılığı ile TSSB arasındaki ilişkide bilişsel esnekliğin kısmi aracılık rolu?nu?n olduğu sonucuna ulaşılmıştır. Diğer taraftan, reddedilme duyarlılığının du?şu?k gelirli katılımcılarda, TSSB’nin psikolojik tanısı olan katılımcılarda, bilişsel esnekliğin ise erkeklerde anlamlı olarak daha yu?ksek du?zeyde olduğu go?ru?lmu?ştu?r.ABSTRACT: In this study, it is aimed to examine the mediating role of cognitive flexibility in the relationship between rejection sensitivity and post-traumatic stress disorder. The study was conducted in relational screening model. The sample of the study consists of 385 participants selected by the convenient sampling method from 12th grade students who continue their education in high schools in Sarıyer district of Istanbul. The study data were collected by a questionnaire prepared on the internet. The questionnaire includes demographic questions, Rejection Sensitivity Scale, Post Traumatic Stress Disorder Checklist, and Cognitive Control and Resilience Scale. Data analysis was performed with SPSS v26 software. Within the scope of the study, validity analysis, reliability analysis, normal distribution analysis, descriptive statistical analysis, correlation analysis, regression analysis, t-test and ANOVA analyzes were performed. As a result of the analysis, it was determined that rejection sensitivity had positive effect on PTSD and negative effect on cognitive flexibility. In addition, it was determined that cognitive flexibility had a negative effect on PTSD. Moreover, it was concluded that cognitive flexibility has a partial mediating role in the relationship between rejection sensitivity and PTSD. On the other hand, it was observed that rejection sensitivity was significantly higher in low-income participants, PTSD was significantly higher in participants with a psychological diagnosis, and cognitive flexibility was significantly higher in men
Unified benchmark for zero-shot Turkish text classification
No full textEffective learning schemes such as fine-tuning, zero-shot, and few-shot learning, have been widely used to obtain considerable performance with only a handful of annotated training data. In this paper, we presented a unified benchmark to facilitate the problem of zeroshot text classification in Turkish. For this purpose, we evaluated three methods, namely, Natural Language Inference, Next Sentence Prediction and our proposed model that is based on Masked Language Modeling and pre-trained word embeddings on nine Turkish datasets for three main categories: topic, sentiment, and emotion. We used pre-trained Turkish monolingual and multilingual transformer models which can be listed as BERT, ConvBERT, DistilBERT and mBERT. The results showed that ConvBERT with the NLI method yields the best results with 79% and outperforms previously used multilingual XLM-RoBERTa model by 19.6%. The study contributes to the literature using different and unattempted transformer models for Turkish and showing improvement of zero-shot text classification performance for monolingual models over multilingual models
Search for direct pair production of supersymmetric partners of ? leptons in the final state with two hadronically decaying ? leptons and missing transverse momentum in proton-proton collisions at Formula Presented
Get PDFA search for the direct production of a pair of ? sleptons, the supersymmetric partners of ? leptons, is presented. Each ? slepton is assumed to decay to a ? lepton and the lightest supersymmetric particle (LSP), which is assumed to be stable and to not interact in the detector, leading to an imbalance in the total reconstructed transverse momentum. The search is carried out in events identified as containing two ? leptons, each decaying to one or more hadrons and a neutrino, and significant transverse momentum imbalance. In addition to scenarios in which the ? sleptons decay promptly, the search also addresses scenarios in which the ? sleptons have sufficiently long lifetimes to give rise to nonprompt ? leptons. The data were collected in proton-proton collisions at a center-of-mass energy of 13 TeV at the CERN LHC with the CMS detector in 2016-2018, and correspond to an integrated luminosity of 138 fb - 1 . No significant excess is seen with respect to standard model expectations. Upper limits on cross sections for the pair production of ? sleptons are obtained in the framework of simplified models. In a scenario in which the ? sleptons are superpartners of left-handed ? leptons, and each undergoes a prompt decay to a ? lepton and a nearly massless LSP, ? slepton masses between 115 and 340 GeV are excluded. In a scenario in which the lifetime of the ? sleptons corresponds to c ? 0 = 0.1 mm , where ? 0 represents the mean proper lifetime of the ? slepton, masses between 150 and 220 GeV are excluded. © 2023 CERN, for the CMS Collaboration
Effect of a Compassion Fatigue Resiliency Program on Nurse Managers' Professional Quality of Life, Stress, and Resilience
No full textBackground:Compassion fatigue, stress, and burnout have an adverse impact on nurse managers.Purpose:To evaluate the impact of a compassion fatigue resiliency program on nurse managers and to obtain their views of the program.Methods:This mixed-methods study was conducted with 16 nurse managers. The compassion fatigue resiliency program was implemented; compassion fatigue, compassion satisfaction, burnout, perceived stress, and resilience were assessed before and after implementation of the program.Results:The mean compassion fatigue and perceived stress scores of nurses decreased significantly after the intervention. Four themes were identified from qualitative analysis, including awareness, coping with stress, effective communication skills in team management, and recommendations.Conclusions:The current study shows the training program reduced nurse managers' compassion fatigue and stress and enabled nurse managers to improve their coping skills and awareness
Retail business management from a sustainability perspective
No full textRetail businesses are the type of businesses that sell their goods individually or in small quantities rather than in bulk, mainly to individual customers. The retail business is one of the most important economic sectors in the world, with its capacity to create jobs and generate revenues, as well as its potential to act as a gateway to sustainability. Retail businesses are under increasing pressure from customers, stakeholders, and governments alike to take on more responsibility for their environmental impact. In that sense, it has become increasingly important for businesses to be aware of their environmental footprint and develop strategies to ensure they progress toward sustainability goals. This chapter will discuss how retailer businesses can adopt sustainable practices within their operations and management practices and the benefits of adopting them. © 2023, IGI Global. All rights reserved
Sanat hukukunda nitelikli fikri tapuların analizi
Get PDFABSTRACT: The subject of this study includes the analysis of the effects of Non-Fungible Tokens (NFTs), which emerged as a product of blockchain technology and gained popularity especially since 2021, on art law. In the first part of the study, the development of the art law and its subject matters are examined, followed by the definition, technological mechanisms, types, brief history, use cases, creation, trading, and the current market of Non-Fungible Tokens (NFTs). In the second part of the study, the issues related to the legal definitions of Non-Fungible Tokens (NFTs), important points to beware for creating and trading Non-Fungible Tokens (NFTs) without violating the rights of any third party, along with selected much debated copyright law questions are discussed. Afterwards, the liability of the Non-Fungible Tokens (NFTs) markets and other intermediaries in the transactions related to Non-Fungible Tokens (NFTs), followed by Non- Fungible Tokens’ (NFTs) effects on important issues of art law, such as ownership, authenticity, provenance, and artists are examined. In the third and last chapter, general information on the regulation of Non- Fungible Tokens (NFTs) is provided, followed by the explanation of the interplay between Non-Fungible Tokens (NFTs) with dispute resolution and tax implications. Finally, skepticism and concerns regarding the Non-Fungible Tokens (NFTs) are mentioned.ÖZET: Bu çalışma, blok zincir teknolojisinin bir ürünü olarak ortaya çıkan ve özellikle 2021’den itibaren giderek popülerlik kazanan Nitelikli Fikri Tapu (NFT)’ların sanat hukukundaki etkilerinin değerlendirilmesini içermektedir. Çalışmanın ilk bölümünde, sanat hukukunun gelişimi ve odaklandığı konular incelenmiş, ardından Nitelikli Fikri Tapu (NFT)’ların tanımına, arka planındaki teknolojik mekanizmalara, çeşitlerine, kısa tarihçesine, kullanım alanlarına, oluşturulmasına ve alım satım gibi süreçlerine ilişkin bilgiler verilmiş, son olarak da mevcut Nitelikli Fikri Tapu (NFT) piyasası aktarılmıştır. Çalışmanın ikinci bölümünde, Nitelikli Fikri Tapu (NFT)’ların hukuki tanımlamalarına ilişkin hususlar tartışılmış, Nitelikli Fikri Tapu (NFT) satın almanın ifade ettiği olgulara, Nitelikli Fikri Tapu (NFT)’ların herhangi bir üçüncü tarafın hakkını ihlal etmeden oluşturulması ve satılabilmesi için dikkat edilmesi gereken hususlara ve çokça tartışılan seçilmiş telif hukukuna ilişkin sorulara yer verilmiştir. Daha sonra, Nitelikli Fikri Tapu (NFT)’lara ilişkin işlemlerde Nitelikli Fikri Tapu (NFT) pazarları ve diğer aracıların sorumluluğu tartışılmış, akabinde Nitelikli Fikri Tapu (NFT)’ların sanat hukukunda büyük önem teşkil eden sahiplik, otantiklik (authenticity), sanat eserinin geçmişi (provenance) ve sanatçıların üzerindeki etkileri incelenmiştir. Üçüncü ve son bölümde ise, Nitelikli Fikri Tapu (NFT)’ların regülasyonuna ilişkin genel bilgiler verilmiş, Nitelikli Fikri Tapu (NFT)’lar ile uyuşmazlık çözümü ve vergi sonuçları arasındaki durum aktarılmıştır. Son olarak da Nitelikli Fikri Tapu (NFT)’lara ilişkin şüpheler ve endişelerden bahsedilmiştir
Identifying Hashtag Cultures to Study the Construction of Childhood Image and Parents' Aspirations
No full textThis study considers posting behavior as a cultural practice as enacted with Instagram postings marked by hashtags #fashionkids and #letthekids and examines whether and how the two hashtags reflect two distinct online cultures about childhood. The study is important for two reasons. First, it offers socio-cultural theory to the study of social media and provides researchers with a theory-based method of using Instagram as a data source to detect and study digital cultures. Second, it contributes to the research activities on the phenomena of sharenting and the changing narrative of childhood in domestic contexts. The inquiry included analyses of the scale of a sample of Instagram postings with hashtags of #fashionkids and #letthekids posted in a 12-day period in 2016, geographical locations where the postings were made, searches of words with linguistic functions in captions, and networking strategies. Analysis of the scale, the networking patterns, the verbal accounts, and the geographical locations where the postings happened help inform us about the magnitude and diverse purposes of the hashtags. Overall, the findings underscore greater diversity among #letthekids posts compared to the more focused content of #fashionkids' postings.New Media Lab, The Graduate Center, City University of New YorkThe author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the New Media Lab, The Graduate Center, City University of New Yor
Factors Affecting the Support of Turkish Firms for the Emissions Trading System in the Context of Harmonization with the European Green Deal
No full textThe European Union will implement a carbon border adjustment mechanism to curb carbon leakage and encourage more countries to participate in the fight against climate change. Countries trading with the Union and lacking carbon pricing policies will be subject to this regulation. Turkey, one of these countries, initiated efforts to establish an emissions trading system (ETS). This study has two objectives: The first is to investigate the environmentally sustainable practices of firms in energy-intensive industries that are likely to be regulated by the ETS. The second is to explore the determinants of support for the ETS. Our findings indicate that firms' adoption of green practices and perception of the ETS as an effective tool have a positive impact on their support for the ETS
Measurement of the B-0 lifetime and flavor-oscillation frequency using hadronic decays reconstructed in 2019-2021 Belle II data
Get PDFWe measure the B-0 lifetime and flavor-oscillation frequency using B-0 -> D(*)-x+ decays collected by the Belle II experiment in asymmetric-energy e+e- collisions produced by the SuperKEKB collider operating at the T(4S) resonance. We fit the decay-time distribution of signal decays, where the initial flavor is determined by identifying the flavor of the other B meson in the event. The results, based on 33000 signal decays reconstructed in a data sample corresponding to 190 fb(-1), are zB(0) = (1.499 +/- 0.013 +/- 0.008) ps, Amd = (0.516 +/- 0.008 +/- 0.005) ps(-1), where the first uncertainties are statistical and the second are systematic. These results are consistent with the world-average values